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8th Biology Vocab
8th grade introduction to biology vocabulary terms
Term | Definition |
---|---|
multicellular | organisms composed of many cells |
stimulus | a change in an organism's environment that causes the organism to react |
response | how an organism reacts to a stimulus |
heterotroph | organisms that cannot make their own food |
homeostasis | the maintenance of stable internal conditions |
metabolism | chemical reactions through which an organism builds up or breaks down materials |
eukaryote | organisms with cells that contain nuclei |
unicellular | single-celled organisms |
nucleus | a dense area in a cell that contains nucleic acid |
prokaryote | unicellular organisms whose cells lack a nucleus |
autotroph | organisms that make their own food |
taxonomy | scientific study of how things are classified |